DOI QR코드

DOI QR Code

폐유리 골재를 혼입한 모르터의 알칼리 실리카 반응에 관한 연구

Alkali-Silica Reaction of Mortar Containing Waste Glass Aggregates

  • 발행 : 2001.06.01

초록

콘크리트에 폐유리의 사용은 알칼리 실리카 반응(ASR)의 팽창으로 균열과 강도저하를 일으킬 수 있다. 본 연구에서는 폐유리의 혼입률과 색상(갈색, 녹색) 및 폐유리로 인해 발생되는 ASR팽창을 저감시키기 위해 섬유의 종류(강섬유, 폴리프로필렌섬유)와 섬유혼입률에 따른 ASR팽창과 강도특성을 분석하였다. 연구결과 녹색의 폐유리가 팽창량이 비교적 작기 때문에 갈색의 폐유리보다 더욱 유용하며, ASTNM C 1260의 시험에 있어서 폐유리의 혼입으로 인한 퍼시멈(pessimum)량은 발견되지 않았다. 또한, 폐유리와 함께 섬유의 혼입은 폐유리의 실리카와 시멘트 페이스트의 알칼리 사이의 ASR로 인한 팽창과 강도 저하를 저감시키는데 효과적인 것으로 나타났다. 특히 폐유리 혼입률 20%에 대해서 강섬유를 1.5vol.% 혼입하였을 경우 팽창은 40%까지 감소하였으며 휨강도는 폐유리만을 혼입한 것(8$0^{\circ}C$ $H_2O$ 양생)에 비해 110%의 강도발현을 나타내었다.

Incorporation of wastes glass aggregate in mortar may cause crack and this may result in the strength reduction due to alkali-silica reaction(ASR) and expansion. The purposes of this study were to investigate the properties of alkali-silica expansion and strength loss through a series of experiments which had a main experimental variables such as waste glass aggregate contents, glass colors, fiber types, and fiber contents. The steel fibers and polypropylene fibers were used for constraining the ASR expansion and mortar cracking. From the result, green waste glass was more suitable than brown one because of low expansion. And in this accelerated ASTM C 1260 test of waste glass, pessimum content can not be found. Also, when used the fibers with waste glass, there is an effect on reduction of expansion and strength loss due to ASR between the alkali in the cement paste and the silica in the waste glass. Specially, adding 1.5 vol.% of steel fiber to 20% of waste glass, the expansion ratio was reduced by 40% and flexural strength was developed by up to 110% comparing with only waste glass(80$\^{C}$ H$_2$O curing).

키워드

참고문헌

  1. Resource Recycling Development of Non-Traditional Glass Markets Reindi J.
  2. Journal of Testing and Evaluation v.2 no.5 Waste Glass as Coarse Aggregate for Concrete Johnson, C. D.
  3. 건설폐기물의 재활용 및 처리기술개발 박승범 (외)
  4. The Alkali-Silica Reaction in Concrete Swamy, R. N., (ed.)
  5. Standard Test Method for Potential Alkali Reactivity of Aggregates ASTM C 1260-94
  6. 에너지절약형 고기능 섬유보강 콘크리트의 개발 및 설계·시공 지침안 작성에 관한 연구 박승범 (외)
  7. Standard Test Method for Potential Alkali Reactivity of Cement - Aggregate Combinations (Mortar Bar Standard) ASTM C 227
  8. Workshop Canadian Developments in Testing Alkali-Aggregate Reactivity The Microbar Method, an Accelerated Expansion Test for Evaluating Aggregate, Assessment of Canadian Aggregate Criaud A.;Vernet C.;Defosse C.
  9. Proceedings of the 10th International Conference on Alkali-Aggregate Reation in Concrete A Critical Review of Accelerated ASR Tests Grattan-Bellow, P. E.
  10. National Research Council, Strategic Highway Research Program, SHRP-C-3342 Alkali-Aggregate Reactivity: An Overview of Research Helmuth, R.
  11. Proceedings of the 10th International Conference on Alkali-Aggregate Reation in Concrete Immersion Test to Identify Cement Alkali Levels and Pozzolans to Prevent ASR Stark, D. C.
  12. Thesis for Degree of Doctor of Science, Columbia University Alkali-Silica Reaction in Concrete with Glass Aggregate Jin;Weihua
  13. Proceedings of the American Society of Civil Engineers v.66 Expansion of Concrete Through Reation between Cement and Aggregate Stanton, T. E.
  14. Studies in Cement-Aggregate Reactions no.256 The Effects on Mortar Expansion of Reactive Component in the Aggregate ViVian, H.E.
  15. Advances in Cement Research v.7 Fused Quartz as a Reference Reactive Aggregate for Alkali-Silica Reaction Studies Berra, M.;Di Maggio, R.;Mangialardi, T.;Paolini, A.E.
  16. ガラスリアスファルト包裝の長期供用性, 包裝 內山(ほか)
  17. 旭硝子財團硏究成果報告 ガラス粉末の水和硬化性狀-廢ガラスの建設素材としての基礎物性に關する硏究 大門正機(外2人)
  18. 第49回セメント技術大會講演集 ガラス粉末を用いたモルタルの强度特性 四川直宏(外2人)
  19. 關東學院大學工學部硏究報告集代 v.40-1 ガラス微粉末がセメントモルタルの壓縮强度發現に及ばす影響について 出雲淳一;影山後文